The utility model discloses a public transformation box with a heat radiating box top. The public transformation box comprises a box top (1) and a box body (2); the box top (1) is mounted on the box body (2); the front side and the rear side of the box top (2) are respectively exposed out of the front side and the rear side of the box body (1); and multiple radiating holes (3) are arranged in the bottom wall of part, which is exposed out of the front and rear sides of the box body (1), of the front and rear sides of the box top (2). The public transformation box with the heat radiating box top is good in heat radiation effect.